var header = "<div class=\"header\">"+
				"<a href=\"index.html\"><img src=\"img/logo.jpg\"/></a>"+
				"<div class=\"header_main\">"+
					"<div class=\"header_top\">"+
						"<span id='lanMark'>中国</span>"+
						"<div class=\"header_top_right\">"+
							"<select name=\"language\">"+
								"<option value=\"\" class='lanOp'>选择语言</option>"+
								"<option value=\"英文\" class='lanOp'>英文</option>"+
								"<option value=\"中文\" class='lanOp'>中文</option>"+
							"</select>"+
							"<a id='enterInfo' href=\"#\">进入全球官网</a>"+
						"</div>"+
					"</div>"+
					"<div class=\"header_bottom\">"+
						"<ul>"+
							"<li><a href=\"news.html\">新闻动态</a></li>"+
							"<li onmouseenter='footD()' onmouseleave='footU()'><a href=\"menu.html\">美食与营养</a></li>"+
							"<li><a href=\"development.html\">加盟流程</a></li>"+
							"<li><a href=\"about.html\">关于我们</a></li>"+
							"<li><a href=\"#\">快餐店位置查询</a></li>"+
						"</ul>"+
					"</div>"+
				"</div>"+
				"<ul onmouseleave='footU()' onmouseenter='footD()' id=\"drop_menu\" class=\"drop-menu\"><li><a>超值 Value</a></li><li><a>经典 Classics</a></li><li><a>精选 Premium</a></li><li><a>低脂 Low Fat</a></li><li><a>百味卷 Warp</a></li><li><a>沙拉 Salad</a></li><li><a>聚餐服务 Catering</a></li><li><a>饮料和小食 Drinks & Sides</a></li><li><a>早餐 Breakfast</a></li><li><a>营养 Nutrition</a></li><li><a>如何点餐 How To Order</a></li></ul>"
			+ "</div>"
			
function footD(){
	document.getElementById("drop_menu").style.display = "block";
}
function footU(){
	document.getElementById("drop_menu").style.display = "none";
}